Platform canvas attachment



Aug. 2, 1932.

C. E. NELSON PLATFORM CANVAS ATTACHMENT Filed Feb. 8. 1932 5 Sheets-Sheet 1 f1 ltomey Aug. 2, 1932. c. E. NELSON 1,869,707

PLATFORM CANVAS ATTACHMENT Filed Feb. 8, 1952 3 Sheets-Sheet 2 Attorney BL'W c. E. NELSON 1,869,707

Aug; 2, 1932.

PLATFORM CANVAS ATTACHMENT A Filed mm s" 1932- ,;}$heets-sheet s I nventor q gwm flliomey Patented Aug. 2, 1932 nears srArs "Prat Pics CLARENCE E. NELSON, OF TERRACE, MINNESOTA PLATFORM CANVAS ATTACHMENT Application filed February 8,1932. Serial 110.591,?45.

This invention appertains to new and useful improvements in platform canvas such as is employed for substantially all types of grain binders, combines and headers, wherein the platform canvas can be used when cutting flax.

At present, the harvesting of flax is very troublesome because of the texture of the same, being considerably stifi fibers in the nature of straw, which gets caught under the usual slack of the canvas.

Furthermore, these stiff constituents of the cut flax also finds its Way in between the platform of the machine and the platform cavas and in this position will stop the machine resulting obviously, in delay and frequently damage to the canvas.

The principal object of this invention is to provide an attachment for conventional 29 platform canvas whereby flax can be harvested in a manner eliminating difficulty and without requiring detachment of the conventional platform canvas.

Other important objects and advantages 535 of the invention will become apparent to the reader of the following specification.

In the drawings Figure 1 represents a perspective view of the attachment in open position and separated from the platform canvas.

Fig. 2 represents a perspective view of the platform canvas and the attachment with the end flap thrown back to disclose the manner of securing the attachment to the canvas.

Fig. 3 represents a side elevational view of the canvas and attachment trained over a pair of rolls.

Fig. 4 represents a top plan view of the platform canvas with the attachment disposed thereon.

Fig. 5 represents a sectional view taken substantially on line 55 of Fig. 4.

Fig. 6 represents a fragmentary detailed sectional view showing one of the outer male fastening elements.

Fig. 7 represents a fragmentary detailed sectional view showing one of the inner male fastening elements.

Referring to the drawings wherein like numerals designate like parts, it can be seen that numeral 5 represents the elongated canvas strip making up the platform canvas, and this has secured transversely thereto at equal longitudinal spaced intervals the slats 6, which slat is secured by rivets or 'likef'securing means 7.

As is clearly shown in Fig. 8, the canvas 5 is disposed over the rolls 8 whereby when the ends of the canvas are secured together, operate as an endless carrier. As is clearly shown in the drawings, the slats 8 are outstanding with respect to the canvas strip 5, and one of these slats denoted by the character reference 660 serves as a sustaining body for the elongated strap 8 which extends toward the end portion of the strip 5 which supports the'fiap 9.

As is clearly shown in Fig.2, the flap 6?; isprovided with a plurality of buckles 10 thereon with which the'straps 8 are engageable and whereby the canvas strip can be drawn taut over the rolls 8.

The foregoing describes the conventional platform canvas such as isnow used on various kinds of harvesting machines.

The attachment which afiords an apron is the attachment making up the present inventionandincludes the elongatedstrip 11 of suitable fabricmaterial, which is provided at one end with buckles 12 with which the tabs 13' on the aforementioned flap 6b are engageable, as in'the' manner substantially shown in Fig. 2.

At a point inwardly from this last-mentioned end of the apron strip 11 are the male fastening elements 14 which are com.- plementary to the female fastening elements 15 on the opposite end of the strip 11.

As is clearly shown in Figs. 5, 6 and 7, the apron 11 extends only about one-half the distance across the strip 5 and is provided at its inner side with longitudinally spaced pairs of socket elements 16-16 for receiving the heads of the inner and outer male securing elements 17 and 18 respectively. The male element 17 each consists of a pin having a head 19, a stop collar 20 adjacent the head, and a riveted head 21 at its end on the inner side of the canvas 5. The outer securing element 18 is equipped with the head 19,

the retaining collar 20 and the end of the pin upon which the head and collar are mounted, and threaded at its free end to accommodate a nut 21a.

Obviously, the flap 5 is disposed over the buckles 10 and 12 and by disposing the socketed end portion of the apron 11 over this flap 9 and engaging the socket 15 with the male element 14, this flap 9 will be maintained in place with the buckles sealed from contact with the material being harvested.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having thus described my invention, what I claim as new is 1. In a platform canvas of the character described, an elongated canvas strip provided with transversely extending fiaps, connecting means between the ends of the strip, an elongated auxiliary strip substantially narrower than the first-mentioned strip, means for securing the narrow strip to the firstmentioned strip and connecting means be tween the ends of the narrow strip.

2. In a platform canvas wherein the canvas is provided with transversely extending flaps; an elongated narrow strip, means for detachably securing the strip to the slat along one longitudinal edge portion of the platform canvas, and detachable means between the ends of the strip.

3. In a plat-form canvas wherein the canvas is provided with transversely extending flaps; an elongated narrow strip, means for detachably securing the strip to the slat along one longitudinal edge portion of the platform canvas, detachable means between the ends of the strip, said detachable means comprising a socket member and a plug member, one

being provided on each end of the Strip.

In testimony whereof I affix my signature.

CLARENCE E. NELSON. 

